| From ff40b201543aff558f2bf681da3093bce82c6eba Mon Sep 17 00:00:00 2001 |
| From: Juan Quintela <quintela@redhat.com> |
| Date: Tue, 14 Jan 2014 15:07:28 +0100 |
| Subject: [PATCH 17/40] bitmap: Add bitmap_zero_extend operation |
| |
| RH-Author: Juan Quintela <quintela@redhat.com> |
| Message-id: <1389712071-23303-18-git-send-email-quintela@redhat.com> |
| Patchwork-id: 56671 |
| O-Subject: [RHEL7 qemu-kvm PATCH 17/40] bitmap: Add bitmap_zero_extend operation |
| Bugzilla: 997559 |
| RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com> |
| RH-Acked-by: Orit Wasserman <owasserm@redhat.com> |
| RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com> |
| |
| Signed-off-by: Juan Quintela <quintela@redhat.com> |
| Reviewed-by: Eric Blake <eblake@redhat.com> |
| Reviewed-by: Orit Wasserman <owasserm@redhat.com> |
| (cherry picked from commit 164590a60fd685399da259ac41b338d9a0b9d6c0) |
| Signed-off-by: Juan Quintela <quintela@trasno.org> |
| |
| include/qemu/bitmap.h | 9 +++++++++ |
| 1 file changed, 9 insertions(+) |
| |
| Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com> |
| |
| include/qemu/bitmap.h | 9 +++++++++ |
| 1 files changed, 9 insertions(+), 0 deletions(-) |
| |
| diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h |
| index afdd257..1babd5d 100644 |
| |
| |
| @@ -220,4 +220,13 @@ unsigned long bitmap_find_next_zero_area(unsigned long *map, |
| unsigned long nr, |
| unsigned long align_mask); |
| |
| +static inline unsigned long *bitmap_zero_extend(unsigned long *old, |
| + long old_nbits, long new_nbits) |
| +{ |
| + long new_len = BITS_TO_LONGS(new_nbits) * sizeof(unsigned long); |
| + unsigned long *new = g_realloc(old, new_len); |
| + bitmap_clear(new, old_nbits, new_nbits - old_nbits); |
| + return new; |
| +} |
| + |
| #endif /* BITMAP_H */ |
| -- |
| 1.7.1 |
| |